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Physics, 11.08.2021 14:00 jocelynmarquillo1
Hai ô tô xuất phát cùng lúc từ hai địa điểm A và B cách nhau 100km chuyển động ngược chiều hướng đến gặp nhau với vận tốc tương ứng là 40km/h và 60km/h
a, tính thời gian vị trí 2 xe gặp nhau
b, tính khoảng cách 2 xe sau 30 phút kể từ khi chuyển động
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Hai ô tô xuất phát cùng lúc từ hai địa điểm A và B cách nhau 100km chuyển động ngược chiều hướng đến...
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